Here's the thing. Every single one of the big phone manufacturers has a thousand patents that every other phone manufacturer has infringed on since the beginning of the industry. They all know this, but for literally decades everyone involved was smart enough to look at the situation and say "Oh hell no! I'm not starting that fight". The in strolled the new kid on the block, they bought some patents on the core technologies (enough to ensure they were inside the circle of mutually assured destruction along with the other manufacturers) but then they went and patented a few (frankly quite silly) UI patents. And so they thought to themselves, we might not be able to start the holy war on the core technologies, but we can certainly fire off just a few shots to protect our user interface. Which is a lot like the US during the cold war saying "surely the Soviets won't mind if we launch nuclear tipped cruise missiles at Kiev, after all, they're not ICBMs".
And the result has been about what you would expect. All out patent war in the cell phone industry, with constantly shifting alliances, tactics, and weapons. We've had import bans because a photo gallery app slid just past the available pictures to communicate to the user that they were at the end. We've had court cases fought over "Swipe to unlock". We've had multi-billion dollar companies bought, sold, and gutted for their patent portfolios. And, most importantly and the issue no one seems to pay attention to, we've created an environment where there is absolutely no chance, literally zero, of a new player entering the game.
So, you say to Google "build Android so that it doesn't infringe on patents". I say 50% of those patents are invalid, and it's just going to take the right court case to show that once and for all. Of the remaining 50%, everyone in the industry stomps all over them, to the point where even the biggest players can't be sure who owns what, who is defending what, and what their next project might infringe upon. It's broken. It's not really Apple's fault, even if they were the ones to set of Armageddon the system has been screwed up for too long to blame them. Any system that relies on cold war style MAD is going to break down eventually.